Odd testing

main.sol

pragma solidity >=0.7.0 <0.9.0;

contract MyContract {
    uint[] public arr = [1,2,3,4,5,6,7,8,9,10];
    uint[] public res;

    function startWork() public {
      for (uint i = 0; i < arr.length; i++) {
        if(arr[i] % 2 == 0) {
          res.push(arr[i]);
        }
      }
    }

    function makeReturns() external returns (uint[] memory) {
      return res;
    }
}